WO2018233847A1 - Dispositif essuie-glace - Google Patents

Dispositif essuie-glace Download PDF

Info

Publication number
WO2018233847A1
WO2018233847A1 PCT/EP2017/065565 EP2017065565W WO2018233847A1 WO 2018233847 A1 WO2018233847 A1 WO 2018233847A1 EP 2017065565 W EP2017065565 W EP 2017065565W WO 2018233847 A1 WO2018233847 A1 WO 2018233847A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiping
wiper blade
end cap
windscreen
free end
Prior art date
Application number
PCT/EP2017/065565
Other languages
English (en)
Inventor
Xavier Boland
Original Assignee
Federal-Mogul S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Federal-Mogul S.A. filed Critical Federal-Mogul S.A.
Priority to PCT/EP2017/065565 priority Critical patent/WO2018233847A1/fr
Publication of WO2018233847A1 publication Critical patent/WO2018233847A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3848—Flat-type wiper blade, i.e. without harness
    • B60S1/3886—End caps
    • B60S1/3894—End caps having a particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3806—Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3848—Flat-type wiper blade, i.e. without harness
    • B60S1/3886—End caps
    • B60S1/3887—Mounting of end caps
    • B60S1/3893—Mounting of end caps cooperating with holes in the squeegee
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3836—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape

Definitions

  • the present invention relates to a windscreen wiper device of the "flat blade type" comprising an elastic, elongated carrier element, as well as an elongated wiper blade of a flexible material, said wiper blade comprising a wiping portion having a wiping head in use facing away from a windscreen to be wiped and a wiping lip in use placed in abutment with a windscreen to be wiped, which wiper blade includes at least one longitudinal groove, in which groove a longitudinal strip of the carrier element is disposed, which windscreen wiper device comprises a connecting device for an oscillating arm, wherein said oscillating arm can be pivotally connected to said connecting device about a pivot axis near a free end thereof, and wherein an end cap is provided near a free end of said wiper blade.
  • a windscreen wiper device of the "flat blade type” is generally known.
  • a windscreen wiper device of the "flat blade type” no use is made of several yokes pivotally connected to each other, but wherein the wiper blade is biased by the carrier element, as a result of which it exhibits a specific curvature.
  • the end cap needs to be connected in a durable and solid manner, while there is a desire to enlarge the wiping area in a simple manner.
  • the object of the invention is to provide an improved windscreen wiper device of the "flat blade type", wherein no use is made of several yokes pivotally connected to each other, but wherein the wiper blade is biased by the carrier element, as a result of which it exhibits a specific curvature.
  • a windscreen wiper device of the type referred to in the introduction is characterized according to the invention in that said wiping lip of said wiping portion permanently extends longitudinally outwardly beyond said end cap, wherein said wiping head of said wiping portion is covered by said end cap.
  • said wiping lip permanently sticks out with respect to said end cap, a larger wiping area compared to that of the prior art is obtained, thus improving the wiping properties.
  • no extra tools are required, whereas assembly and disassembly is simple and not costly. Particularly, no modifications to the end cap are necessary, so that a standard end cap may be used.
  • Said wiping portion preferably comprises said wiping head facing away from a windscreen to be wiped and said wiping lip facing towards a windscreen to be wiped, i.e. to be placed with its wiping edge in abutment with a windscreen to be wiped, wherein said wiping head and said wiping lip are interconnected by a tilting web.
  • Said wiping lip may be widened into wedge shoulders towards said tilting web.
  • the present invention is not restricted to cars, but also refers to rail coaches and other (fast) vehicles.
  • the present invention is not restricted to the use of only one longitudinal strip forming the elastic carrier element that is particularly located in a central longitudinal groove of the wiper blade. Instead, said carrier element may also comprise two longitudinal strips, wherein said strips are disposed in opposite longitudinal grooves of the wiper blade. Said groove (s) may be closed at one outer end.
  • a mounting head fixed for rotation to a shaft, wherein said shaft is rotatable alternately in a clockwise and in a counter-clockwise sense carrying said mounting head into rotation.
  • said mounting head draws said connecting device into rotation and thereby moves said wiper blade.
  • said mounting head is fixed for translation to a carriage, wherein said carriage can be translated alternately in a one linear direction and in another counter linear direction carrying said mounting head into translation.
  • the present invention can therefore be used for circular or linear movement of said mounting head.
  • Said connecting device is preferably made of plastic.
  • the wiper blade being preferably made of an elastomer material, such as rubber, is particularly made through extrusion or molding.
  • said wiper blade comprises a spoiler at a side thereof facing away from the windscreen to be wiped, wherein said wiper blade and said spoiler are preferably made in one piece.
  • Said longitudinal groove is preferably a central longitudinal groove accommodating said longitudinal strip.
  • Said longitudinal strip is also called a "flexor”.
  • Said connecting device is preferably fixedly connected to the longitudinal strip(s) particularly through a welding, brazing ("soldering"), gluing or clamping operation or with the help of a pin inserted through said connecting device and said longitudinal strip(s).
  • said connecting device is clamped onto the flexible material of the wiper blade, particularly in case the latter is equipped with a central longitudinal groove for the carrier element.
  • said end cap is preferably detachably connected to the flexible material of said wiper blade, particularly by snapping, that is clipping said end cap onto said flexible material of said wiper blade.
  • the end cap closes the groove in a dust tight and watertight manner, dust and (rain) water are not allowed to enter said groove. This implies that any decrease in mobility between the wiper blade and the strip due to any dust inside the groove is avoided, whereas any corrosion of the strip due to any (rain) water inside the groove is avoided as well.
  • said connecting device and said oscillating arm are interconnected with the interposition of a joint part ("adapter").
  • said connecting device comprises two protuberances extending outwardly on either side of said connecting device, wherein said protuberances pivotally engage into correspondingly shaped recesses of said joint part.
  • Said protuberances are preferably cylindrical in shape.
  • an end wall of said end cap is arranged to block a longitudinal movement of said wiping head of said wiping portion relative to said strip in a direction towards said end cap.
  • said end cap is provided with a downwardly extending gripping tooth engaging said wiping head of said wiping portion in order to block any longitudinal movement of said wiping head relative to said longitudinal strip in the opposite direction, i.e. away from the end cap (i.e. towards the mounting head).
  • a free end of said wiping portion has a step-like profile, and wherein a longitudinally outwardly extending part of said profile forms said wiping lip of said wiping portion, thereby allowing said wiping lip of said wiping portion to permanently extend beyond said end cap.
  • said free end of said wiping portion is cut at an oblique angle relative to a longitudinal direction of said wiper blade, thereby allowing said wiping lip of said wiping portion to permanently extend beyond said end cap. Said angle is chosen between 40° and 70°, preferably approximately 60° (relative to the longitudinal direction of the wiper blade).
  • said wiper blade is made in one piece, preferably through extrusion or molding, such as injection molding.
  • said free end of said wiper blade in use is facing away from a mounting head for said oscillating arm.
  • a free end of said wiper blade opposite said free end of said wiper blade having the wiping lip permanently extending beyond said end cap is provided with an end cap. Particularly, said opposite free end of said wiping portion is cut at a straight angle relative to a longitudinal direction of said wiper blade.
  • the present invention also relates to a method for manufacturing a windscreen wiper device of the "flat blade type" in accordance with the invention.
  • figure 1 is a schematic side view of a preferred embodiment of a windscreen wiper device according to the invention, together with a joint part;
  • figure 2 corresponds to figure 1 , but now shows said windscreen wiper device in a cross- sectional view;
  • figure 3 corresponds to figure 1 , but now shows said windscreen device in a perspective, schematic view, together with the wiper blade in a schematic side view;
  • FIG 4 shows a detail of the windscreen wiper device of figure 1 , seen in cross-section.
  • Figure 1 shows a preferred variant of a windscreen wiper device 1 of the flat blade type according to the invention.
  • Said windscreen wiper device 1 is built up of an elastomeric wiper blade 2 comprising two longitudinal opposite grooves on longitudinal sides of the wiper blade (not shown), wherein longitudinal strips (not shown) made of spring band steel are fitted in said longitudinal grooves. Said strips form a flexible carrier element for the rubber wiper blade 2, as it were, which is thus biased in a curved position (the curvature in operative position being that of a windscreen to be wiped).
  • the windscreen wiper device 1 is furthermore built up of a connecting device 3 of metal for connecting an oscillating wiper arm thereto (not shown), with the interposition of a joint part 4.
  • the oscillating wiper arm is pivotally connected to the connecting device 3 about a pivot axis near one end.
  • the interconnection between the oscillating arm and the connecting device 3 is a so-called bayonet connection, wherein a resilient tongue on the joint part 4 snaps into a corresponding hole on the oscillating arm.
  • the preferred embodiment of figure 1 according to the invention comprises a spoiler or "air deflector" 5 extending on opposite sides of the connecting device 3 of the wiper blade 2.
  • End caps 6' , 6" are provided on both extremities of the wiper blade 2, wherein said end caps 6' , 6" are connected to the longitudinal strips, wherein the end cap 6'holds the rubber thereof in an upright position.
  • said oscillating arm is connected to a mounting head fixed for rotation to a shaft driven by a small motor.
  • the shaft rotates alternately in a clockwise and in a counter-clockwise sense carrying the mounting head into rotation also, which in turn draws said oscillating arm into rotation and by means of said connecting device 3 moves said wiper blade 2.
  • said wiper blade 2 comprises a wiping portion 7 having a wiping head 8 in use facing away from a windscreen to be wiped and a wiping lip 9 in use placed in abutment with a windscreen to be wiped.
  • said wiping lip 9 of said wiping portion 7 permanently extends beyond the end cap 6' that in use is facing away from a mounting head for said oscillating arm. This is realized by cutting the wiping portion 7 at an oblique angle of preferably 60° relative to a longitudinal direction of said wiper blade 2.
  • said wiping head 8 of said wiping portion 7 is covered by said end cap 6' .
  • an end wall 10 of said end cap 6' blocks any longitudinal movement of said wiping head 8 of said wiping portion 7 relative to said longitudinal strips in a direction towards the end cap 6' (figure 4).
  • Said end cap 6' is provided with a downwardly extending gripping tooth 11 engaging said wiping head 8 of said wiping portion 7 in order to block any longitudinal movement of said wiping head 8 relative to said longitudinal strips in a direction towards the mounting head (figure 4).
  • said wiping head 8 and said wiping lip 9 of said wiping portion 7 at the location of the end cap 6' ' that in use is facing towards a mounting head for said oscillating arm are cut at a straight angle of 90° relative to a longitudinal direction of said wiper blade. At that location the wiping lip 9 of said wiping portion 7 does not stick out.
  • the present invention is not limited to the embodiment shown, but extends also to other embodiments falling within the scope of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

L'invention concerne un dispositif essuie-glace du type "à lame plate", comprenant un élément de support allongé élastique, ainsi qu'un balai d'essuie-glace allongé en matériau souple, ledit balai d'essuie-glace comprenant une partie d'essuyage (7) ayant une tête d'essuyage (8) opposée, lors de l'utilisation, à un pare-brise à essuyer et une raclette d'essuyage (9) placée, lors de l'utilisation, en butée avec un pare-brise à essuyer, lequel balai d'essuie-glace comprend au moins une rainure longitudinale, dans laquelle une bande longitudinale de l'élément de support est disposée, lequel dispositif essuie-glace comprend un dispositif de liaison pour un bras oscillant, ledit bras oscillant pouvant être relié pivotant audit dispositif de liaison autour d'un axe de pivotement à proximité d'une extrémité libre de ce dernier, et un capuchon d'extrémité (6) étant disposé à proximité d'une extrémité libre dudit balai d'essuie-glace, avec la particularité que ladite raclette d'essuyage (9) de ladite partie d'essuyage (7) s'étend en permanence longitudinalement vers l'extérieur au-delà dudit capuchon d'extrémité (6), ladite tête d'essuyage (8) de ladite partie d'essuyage (7) étant recouverte par ledit capuchon d'extrémité (6).
PCT/EP2017/065565 2017-06-23 2017-06-23 Dispositif essuie-glace WO2018233847A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/065565 WO2018233847A1 (fr) 2017-06-23 2017-06-23 Dispositif essuie-glace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/065565 WO2018233847A1 (fr) 2017-06-23 2017-06-23 Dispositif essuie-glace

Publications (1)

Publication Number Publication Date
WO2018233847A1 true WO2018233847A1 (fr) 2018-12-27

Family

ID=59101496

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/065565 WO2018233847A1 (fr) 2017-06-23 2017-06-23 Dispositif essuie-glace

Country Status (1)

Country Link
WO (1) WO2018233847A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5571958U (fr) * 1978-11-14 1980-05-17
EP1698533A1 (fr) * 2005-03-02 2006-09-06 Federal-Mogul S.A. Dispositif d'essuie-glace
DE102006049748A1 (de) * 2006-10-21 2008-04-24 Audi Ag Wischerblatt für einen Scheibenwischer
EP2103489A1 (fr) * 2008-03-19 2009-09-23 Federal-Mogul S.A. Dispositif d'essuie-glace
DE102008017249A1 (de) * 2008-04-04 2009-10-08 Volkswagen Ag Wischerblatt für einen Scheibenwischer an einem Fahrzeug

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5571958U (fr) * 1978-11-14 1980-05-17
EP1698533A1 (fr) * 2005-03-02 2006-09-06 Federal-Mogul S.A. Dispositif d'essuie-glace
DE102006049748A1 (de) * 2006-10-21 2008-04-24 Audi Ag Wischerblatt für einen Scheibenwischer
EP2103489A1 (fr) * 2008-03-19 2009-09-23 Federal-Mogul S.A. Dispositif d'essuie-glace
DE102008017249A1 (de) * 2008-04-04 2009-10-08 Volkswagen Ag Wischerblatt für einen Scheibenwischer an einem Fahrzeug

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